diesel performance parts & upgrades

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  • GM Duramax L5P All-In-One DPF/DEF/EGR Delete Kit (2017-2025)
    GM Duramax L5P All-In-One DPF/DEF/EGR Delete Kit (2017-2025)
    Off-Road Use Only!
    Sale
    JS Speed Diesel|44 in stock
    Regular price $2,979.19
    $3,417.10 Sale price $2,979.19 Regular price
  • GM Duramax LM2 - ECM E46 Upgrade & Unlock Service (2020-2022)
    Off-Road Use Only!
    JS Speed Diesel|5 in stock
    Regular price $550.00
    Sale price $550.00 Regular price
  • Ford Powerstroke 6.0L Cold Air Intake (2003-2007)
    Off-Road Use Only!
    Sale
    JS Speed Diesel|5 in stock
    Regular price $144.99
    $275.00 Sale price $144.99 Regular price
  • JS Speed Diesel|5 in stock
    Regular price $124.99
    Sale price $124.99 Regular price
  • Ford Powerstroke 6.7L 4" Filter-Back Exhaust (2011-2025)
    Ford Powerstroke 6.7L 4" Filter-Back Exhaust (2011-2025)
    Off-Road Use Only!
    Sold out
    JS Speed Diesel
    Regular price $359.00
    Sale price $359.00 Regular price
  • Ford Powerstroke 6.7L 4" Downpipe-Back Stainless Steel Exhaust (2011-2025)
    Ford Powerstroke 6.7L - 4" Downpipe Back Stainless Steel Exhaust System (2011-2024)
    Off-Road Use Only!
    JS Speed Diesel|594 in stock
    Regular price $522.50
    Sale price $522.50 Regular price
  • GM Duramax 6.6L All-in-One DPF/DEF/EGR LML Delete Kit (2011-2016)
    GM Duramax 6.6L All-in-One DPF/DEF/EGR LML Delete Kit (2011-2016)
    Off-Road Use Only!
    Sale
    JS Speed Diesel|20 in stock
    Regular price $1,375.60
    $1,526.92 Sale price $1,375.60 Regular price
  • Ford Powerstroke 6.4L - Turbo Up-Pipes [No EGR] (2008-2010)
    Ford Powerstroke 6.4L - Turbo Up-Pipes [No EGR] (2008-2010)
    Off-Road Use Only!
    JS Speed Diesel|5 in stock
    Regular price $249.50
    Sale price $249.50 Regular price
  • Ford Powerstroke 6.7L – All-In-One Delete Kit (2011-2019)
    Ford Powerstroke 6.7L – All-In-One Delete Kit (2011-2019)
    Off-Road Use Only!
    Sale
    JS Speed Diesel|117 in stock
    Regular price $1,292.95
    $1,435.17 Sale price $1,292.95 Regular price
  • Sale
    JS Speed Diesel|5 in stock
    Regular price $90.00
    $119.99 Sale price $90.00 Regular price
  • GM Duramax LM2 EGR & Cooler Delete Kit (2020-2022)
    GM Duramax LM2 EGR & Cooler Delete Kit (2020-2022)
    Off-Road Use Only!
    JS Speed Diesel|5 in stock
    Regular price $275.00
    Sale price $275.00 Regular price
  • GM Duramax LM2 All-In-One DPF/DEF/EGR Delete Kit (2020-2022)
    GM Duramax LM2 All-In-One DPF/DEF/EGR Delete Kit (2020-2022)
    Off-Road Use Only!
    Sale
    JS Speed Diesel|448 in stock
    Regular price $2,896.06
    $3,214.63 Sale price $2,896.06 Regular price
  • Ram EcoDiesel 3.0L Iron Loader V2 Delete Tuning (2014-2017)
    Ram EcoDiesel 3.0L Iron Loader V2 Delete Tuning (2014-2017)
    Off-Road Use Only!
    JS Speed Diesel|2058 in stock
    Regular price $1,098.90
    Sale price $1,098.90 Regular price
  • Jeep EcoDiesel 3.0L Iron Loader V2 Delete Tuning (2014-2017)
    Jeep EcoDiesel 3.0L Iron Loader V2 Delete Tuning (2014-2017)
    Off-Road Use Only!
    JS Speed Diesel|29986 in stock
    Regular price $1,098.90
    Sale price $1,098.90 Regular price
  • Jeep Grand Cherokee EcoDiesel 3.0L Delete Kit with Iron Loader V2 (2014-2017)
    Jeep Grand Cherokee EcoDiesel 3.0L Delete Kit with Iron Loader V2 (2014-2017)
    Off-Road Use Only!
    Sale
    JS Speed Diesel|10 in stock
    Regular price $1,664.77
    $1,847.89 Sale price $1,664.77 Regular price
  • Ram Cummins 6.7L All-in-One DPF/DEF/EGR Delete Kit w/ECM Swap (2022-2024)
    Ram Cummins 6.7L All-in-One DPF/DEF/EGR Delete Kit w/ECM Swap (2022-2024)
    Off-Road Use Only!
    Sale
    JS Speed Diesel|6 in stock
    Regular price $5,862.44
    $6,575.75 Sale price $5,862.44 Regular price
Showing 160 products

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